CVE-2017-0100
A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted…
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 5.0%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted application, aka "Windows HelpPane Elevation of Privilege Vulnerability."
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.96% probability · 92th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 15 March 2017
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- microsoft/windows 10 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016
- Source
- secure@microsoft.com
EPSS moved from 6.7% on 21 September 2026 to 5.0% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://blog.inspired-sec.com/archive/2017/03/17/COM-Moniker-Privesc.html
- http://www.securityfocus.com/bid/96700Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038001
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1021
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0100Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/41607/
- http://blog.inspired-sec.com/archive/2017/03/17/COM-Moniker-Privesc.html
- http://www.securityfocus.com/bid/96700Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038001
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1021
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0100Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/41607/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.